Problem with bigBed for methyl array 450K for hg38 ?

[F. Vdm]

Hi there,

Thanks for maintaining UCSC and helping us !

I recently downloaded 450K bigBed for hg38 build from there : https://hgdownload.soe.ucsc.edu/gbdb/hg38/bbi/illumina/

And after conversion to BED I noticed it contains only ~ 129K probes

=> Which is quite few compared to same file on hg19 build (and compared to its name = "450K")

Am I the only one seeing this ? Could it be an issue with this bigBed ?

Thanks for your help !

Best,

Felix.